YDYD Series Pole-Changing Multi-Speed Three-Phase Asynchronous Motor
YD Pole-Changing Multi-Speed Motor HUALI
YD are two- and three-speed pole-changing motors per JB/T 7127-2010: stepped speed change by reconnecting the stator winding, no frequency converter needed. Frames 80–315, 380 V/50 Hz; typical schemes 4/2, 8/4, 6/4, 8/6 and three-speed 8/6/4 (1:2 ratio — single Dahlander winding, others — two independent windings). Derivatives: YDT for fans with torque falling at low speed (0.25–90 kW) and YD-H marine with CCS approval. Used where two or three fixed speeds are required: cranes, lifts, machine tools, fans, textile machines. Russian equivalent: multi-speed versions of AIR/4AM series.
Specifications
- Frame sizes
- 80–315 mm
- Voltage
- 380 V, 50 Hz
- Pole-changing schemes
- 4/2, 8/4, 6/4, 8/6; three-speed 8/6/4
- Winding
- single (Dahlander, 1:2) or two independent windings
- Derivatives
- YDT — fan duty 0.25–90 kW; YD-H — marine (CCS)
- Standard
- JB/T 7127-2010
Applications
- Crane hoist and travel mechanisms
- Lifts and hoists
- Two-speed fans (YDT)
- Machine tools
- Textile and packaging machines
Industries
We will select the right size for your task and prepare a quotation under a direct SDS contract.
